The following text discusses food preservation.
Fermentation has preserved foods for millennia without refrigeration. Beneficial bacteria convert sugars to acids, creating environments hostile to harmful microorganisms. Sauerkraut, kimchi, and yogurt all result from this process. Modern science reveals additional benefits: fermented foods contain probiotics that support digestive health and may enhance immune function.
What is the main purpose of the text?
To provide recipes for making fermented foods at home
To compare fermentation methods across different cultures
To explain how fermentation works and its health benefits
To argue against modern refrigeration technology
Correct Answer: C
Choice C is the best answer. The text explains the fermentation process (bacteria converting sugars) and its health benefits (probiotics, immune function).
- Evidence: The text explains the mechanism: "Beneficial bacteria convert sugars to acids." It notes benefits: "contain probiotics that support digestive health."
- Reasoning: The passage is informative, covering the "how" and the "why it's good."
- Conclusion: The purpose is to explain the process and benefits.
💡 Strategy: Summarize the text: Mechanism + Benefits.
Choice A is incorrect because no recipes are provided. Choice B is incorrect because cultural comparison isn't the focus. Choice D is incorrect because refrigeration isn't criticized.